Apparatus for manufacture of metallic bands.



J. B MGKIBBIN.

APPARATUS FOR MANUFACTURE OF METALLIC BANDS.

APPLICATION FILED JAN.17, 1912.

Patented Oct. 21, 1913.

2 SHEETS-SHEET 1.

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' APPLICATION FILED JAN. 17, 1912. I 1,076,439. Patented Oct. 21, 1913.

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r onrm JOHN B. MCKIBBIN, 0F GRAFTON, PENNSYLVANIA, ASSIGNOR OF FIVE-SIXTEEN'IHS T0 GEORGE WRIGHT, JR., TWO-SIXTEENTHS T0 SAMUEL F. LONG, AND FOUR- SIXTEENTHS TO JOHN. U. WRAGG, ALL OF PITTSBURGH, PENNSYLVANIA.

APPARATUS FOR MANUFACTURE OF METALLIC BANDS,

Continuation of application Serial no. 555,691, filed April 5, 1910.

Specification of Letters latent.

Patented @ct. 21, M913.

This application filed January 17, 1912.

Serial-No. 671,651.

To all whom it may concern: I

Be it known that I, JOHN B. MCKIBBIN, a citizen of the United States, residing at Grafton, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Aptudinally into a plurality of such strips,

guiding means for the severed strips, and means for finishing or rounding the edges of each strip, in a continuous operation.

This application is a continuation of my former application filed April 5, 1910, Se}- rial No.-555',691'.

IIT carrying out my invention, I employ specially designed and constructed slitting mechanism, means for treating the opposite edges of each individual strip to finish thesame, with means between the slitting and finishing mechanism adapted to automatically guide the severed slits and impart a continuous spiral deflection. to them as they pass through the slitting mechanism and to introduce them individually in changed position to the edge finishing mechanism. The apparatus by which they are carried out as hereinafter claimed, are illustrated inthe accompanying drawings in which:

. Figure 1 IS a plan View, partly in section,

showing the assembled apparatus. Fig. 1 is a detail view illustrating the end of the blank as it may be prepared for introduction .to the slitting mechanism. Fig. 2 is a longitudinal sectional view, indicated by the line II. II.- of Fig. 1. Fig. 3 is an enlarged sectional detail view through the slitting mechanism, indicated by the line III. lIlLof Fig. 1. Figs. 4, 5 and 6 are enlarged sec; tional detail views, indicated by the section lines IV. IV., V. V. and VI. VI. respectively of Fig. 1, illustrating the turning passes of the several blanks at successive points in their progress from the slitting mechanism to the edge finishing mechanism. lFig.

a partial plan view similarto Fig. 1, showing a modified construction of mechanism for introducing the severed strips to the edgefinishing mechanism. Fig. 8 is a vertical sectional view therethrough, indicated by the line VIII. VIII. of Fig. 7. Fig. 9 is an end view of the slitting mechanism. Fig. 10 is a similar view of the edge finishing mechanism. Fig ll is an enlarged sectional detail view, illustrating one preferred 'manner of making an N assembling the slitting mechanism. lFig 12 is a. similar view illustrating the edge .finishing mechanism. Fig. 13 is alongitudinal sectional view showing a modified construction, employing feed.

rolls in combination with the slittingmechanism.

The objects of my invention are accomplished by means of a series of pairs of circular co-acting shears or disks slightly overlapping and suitably spaced to sever the blank of any desired width, into a number of longitudinal strips; a corresponding series of guiding channels arranged to receive the severed strips therein from such mechanism and to gradually turn them in continuous spiral paths'from horizontal to vertical positions; and a pair of rolls provided with edge finishing grooves in corresponding relation, adapted to receive the severed and turned strips and to engage the edges thereof to accomplish the finishing or rounding and to complete the operation.

[is illustrated in Figs. 1 and 2, a pair of slitting rolls, generally designated by the letters A, A, are mounted in suitable bearings and housings 2 supported upon any convenient foundation. Each of said rolls or male portions or and a corresponding se-' ries of intervening recessed or female portions 6 of a width corresponding to the desired width of the several strips whichare to be severed from the blank B. Said rolls are preferably constructed of a series of disks 3 and intervening spacers a and 5, as more clearly indicated in Fig. 11. The ob-- ject of such construction is that the disks may be comparatively thin and of har dened' steel, while the separators land 5 mav be of any ordinary metal and may also be of varying widths whereby to suitably space the co'acting edges of the series of disks 3 to anydesired width of cut, as will be readily understood. Said parts 3,4 and 5 are mounted upon shafts 6 and 7 by longitudinal keys and keyways, and are actuated through suitable gearing 8 from driving pinion 9 and shaft 10, as indicated in Fig. 1, or in any other suitable manner.

Beyond the slitting mechanism is the edge finishing mechanism, also consisting of ,a pair of co-acting rolls, generally designated by the letters C, C, mounted in suitable bearings and housing 2 and forming, with the housings 2 and the foundation thereof,

preferably a continuous integral supporting structure. It will be understood that the distance between the housings 2 and 2 will be regulated by the space necessary to accomplish the turning operation of the severed strips, according to the dimensions, gage, etc., thereof, and is entirely within the province of the designer. Said edge finishing rolls 0, O, are actuated from driving pinion 9 by suitable gearing 11, like gearing 8, as will be readily understood without further description, it being understood, of course, that the rolls A, A, and (l, G, are actuated in proper directions through suitable intermeshing gearing 12 and 13 respectively, at the opposite ends of the several rolls,or in any preferred manner.

The blank B is introduced between the co-acting overlapping edges of the cutting disks 3, being forced thereinto by any suitable means as desired, and as the blank travels therethrough it is severed into a series of individual strips of the desired reduced width.

For the purpose of facilitating the introduction of the blank B between the several slitting devices or rotary shears, it may, if desired, be notched at its entering end, as indicated at 6 Fig. 1, at distances corresponding to the several desired slits, whereby to facilitate the commencement of the operation or centralization of the blank.

Side guides 14 are also preferably employed for the same purpose.

Between the slitting rolls A and, the edge finishing rolls C, E insert a composite turning die consisting of a lower or base portion 15 and an upper or top portion 16, mounted upon a suitable supporting base or frame 17 of the main foundation structure and rigidly to the edge finishing vmechanism. -vious object'of this arrangement is to gradprovide a serles of open passes or cavities 24. Said passes are of suitable dimensions as to width and length, to accommodate the several severed'strips and to permit them to pass freely therethrough with sufficient clearance to avoid binding or unnecessary friction, but so approximating the cross sectional dimensions of the strips as to prevent any material variation thereof within the several passes. In other words, the passes constitute guides for the strips through which they pass fromthe slitting mechanism to the edging mechanism. The function of such passes is to gradually turn the severed strips in a spiral direction very gradually and without exerting any special torsion and frictional resist ance so that the strips will pass with comparative ease and freedom from resistance or obstruction, from the slitting mechanism The obually transpose the severed strips from horizontal to vertical positions, thereby chang-v ing them from their positions as they emerge from the slitting mechanism, which is, of

course, horizontal, to best carry out the slitting function, to vertical positions whereby they may be best and most economically treated by the edge finishing mechanism accomplished through the two main roll members O, 0. As thus constructed, the turning passes 24 comprise initial horizontal receiving ends which are absolutely in front of the slitting mechanism, as indicated at 24* at one end,of the guiding mechanism; a plurality of delivering portions 24 immediately in front of the edge finishing mechanism, which are absolutely vertical, each of said end portions extending inward toward the middle for a short distance in horizontal and vertical planes respectively; and intervening turning portions 24 of continuously varying angles, as indicated, whereby the plane of each pass is-graduall'y but continuously changed from the horizontal to the vertical. By this arrangement each sev-' ered' strip in its passage from the slitting mechanism to the edge finishing mechanism is turned through an arc of 90, as indicated by the dotted lines in Figs. 4, 5 and 6.

The inner faces of: the guides 15, 16, at their receiving ends, immediately confronting the slitting mechanism, are flared, as-

indicated at 25, Figs. 2 and 3 whereby to insure positive introduction ofthe ends of the several slitted strips into the pass 24, as

they travel forward-1y from the slitting rolls A.

7 While the several passes may be so designed and' arranged as to absolutely register with the edge; finishing grooves of the rolls C, Q as indicated in Fig, 1,1 may uti lize a: supplemental guiding die 26 of comparatively short length, between the edge finishing rolls C and the ends of the guides- 15, 16, as illustrated in Figs. 7 and 8. In such construction the vertical terminals 24 of the several passes deliver the strips directly into the guiding openings 27 of such die, which, as shown, are flared so as to provide somewhat wider receiving openings, which are narrowed down to the same Width as that of the edge finishing grooves of the rolls C, as will be readily understood. In such construction the die 26 is preferably in abut-ting contact with the end of the main guide 15-16 and forms a continuation thereof, being positively secured in position by any suitable means, as bolts 28, securing it to the foundation frame. For the purpose of providing facility for treating strips of varying widths (and corresponding varying lateral distances apart when turned) the slitting mechanism is preferably composed of a series of comparatively short rolls 0 mounted upon driving shafts 29 and 30 and secured thereon for rotation by keys and keyways. Each of said individual rolls a is suitably recessed at its outer ends so that when the several sections 0 are assembled they will provide a series of grooves c. The inner end of said grooves may be rounded. as shown, and suitably designed to compress or treat the edges of the severed strips as they pass therethrough whereby to round them and eliminate all sharp edges, burs, etc.

It will be understood that the speeds of the edge and slitting rolls are suitably gaged for proper cooperation whereby the edge rells will engage and assist in drawing the strips through at the same speed as that of the slitting mechanism.

In Fig. 13, I have 'shown at the entering side of the slitting rolls A,'a pair of feeding rolls D, D, with any suitable guides (Z, (Z, andbeyond the slitting rolls a pair of additional feed rolls E, E, and additional guides c, 0. While such parts are not essential to the carrying out of the invention in its broader aspects, they may be adopted, if desired, dependent upon the conditions of the material being treated as to gage, width, etc.

The operation and the functioning of the mechanism employed will be readily'understood from the foregoing description. Its advantages consist in the ease and facility of manufacturing finished strips, bands, cotton ties, and the like from rolled blanks of sheet metal in one continuous operation whereby to deliver the finished product ready for use.

The operation is comparatively simple and very economical, it reults in absolute uniformity of gage and finish, and in a commercial product of unvarying standard quality. I

Having described my invention, What ll claim i822 1. Apparatus for slitting and finishing sheet metal bands comprising slitting mech anism, edge treating mechanism, and intervenlng guide mechanlsm embodying a plurality otpasses adapted to receive and continuously conduct the several strips from the slitting mechanism to the edge treating mechanism, and to, gradually change the planes of the severail strips from horizontal to vertical, the longitudinal centers of said passes being parallel and conforming to the lateral spacing of {the slitting mechanism and edge treating mechanism, substantially as set forth. p

3. The combination'with co-acting disks operable to divide a sheet metal blank into a plurality of strips on a horizontal plane, and a pair of edging rolls provided with vertically arranged edge-finishing passes, of intervening guiding mechanism providing a plurality of individual passes for said strips extending continuously from the slitting mechanism to the edging mechanism, and gradually changing in cross section from horizontal to vertical planes respectively, the longitudinal centers of said passes being parallel and conforming to the lateral spacing of the slitting mechanism and edge treat-ing mechanism, substantially as set forth.

t. The combination with co-acting, slitting disks operable to divide a sheet metal blank into a plurality of strips on a horizontal plane, and a pair of edging rolls provided with vertically arranged edge finishing passes spaced in conformity with the spacing of the slitting disks, of intervening guiding mechanism consisting of a lower and an upper guide-forming member, each of said members being provided with contacting faces and inner pass-forming surfaces substantially conforming to the faces and edges of the strips adapted to travel therethrough, and gradually changing from horizontal to vertical planes, and laterally spaced in conformity with the spacing of the slitting disks and edging rolls, substantially as set forth.

5. The combination with a pair of slitting rolls adapted to slit a blank longitudinally on a horizontal plane and a pair of edge treating rollshaving series of vertical passes spaced in correspondence with the spacing of the slitting rolls, of guide mechanism embodying a series of intervening individual closely adj acent guiding passes for the severed blanks having an initial common horizontal plane adjacent the slitting rolls and gradually changing in spiral formation throughout their length and terminating in vertical planes adjacent the edging rolls, substantially as set forth.

6. The combination with a pair of slitting rolls adapted to slit a blank longitudinally on a horizontal plane and a pair of edge treating rolls having series of vertical passes spaced in correspondence with the spacing of the slitting rolls, of guide mechanism consisting of an upper and a lower member spaced apart from each other having interaging shoulders arranged to provide a series of individual guiding passes and intervening meeting joints, said passes gradually changing from horizontal to vertical planes in spiral formation and maintaining parallelism as to their longitudinal centers and uniformity of spacing corresponding to the spacing of the slitting rolls and edging rolls, substantially as set forth.

T",v In combination, means for longitudinall y slitting a moving sheet metal blank into a series of individual strips, means for treating the edges of each strip, and guiding mechanism for the strips consisting of vtwo guide-forming members extending between C. M. CLARKE, CHARLES LARGE. 

